Safety locking device for hooks



G. C. ROHRBACH.

SAFETY LOCKING DEVICE FOR HOOKS.

APPLICATION- mo nums, 1.919.

1,356,830 'Patented Oct. 26,192Q

UNITED STATES GEORGE o. ROHRBACH, 0F ALLENTOWN, PENNSYLVANIA,,ASSIGNOR*ro noNNEY VISE & TOOL WORKS, INC, OF PHILADELPHIA, PENNSYLVANIA,

TION; OF PENNSYLVANIA.

,sAr rY LOGKINGDEVICE ron HOOKS. j Y

useful Safety Locking Device for Hooks, of

which the following is a specification.

My invention relates to an improvement I in a hook, and consists of alock snap for closing the throat, or opening of said hook,

for preventing a line or other object applied to the hook fromdisengagement or disconnection therefrom.

The invention is satisfactorily illustrated in the accompanyingdrawing,but the important instrumentalities thereof may be varied, andso it is to be understood that the invention is not limited to thespecific details shown and described, as long as they are within thespirit or scope of the claims.

Figures 1 and 2 represent side elevations respectively at a right angleto each other of a safety locking device for a hook embodying myinvention.

Fig. 3 represents a side elevation of a portion of the device in thedirection of the arrow, Fig. 1.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings.

1 designates the body of the hook, and 2 the ring or eye thereof, whichfeatures are of themselves well known.

On the inner side of said body adjacent I to said hook is the perforatedlug 3 which projects from said side into the throat or passage 4:, ofthe body of the hook, and consequently toward the nose 5 of the hook.

6 designates a clevis which consists at one end of the eye 7 Whichisjournaled in the perforation or opening 8 of the lug 3, the loop 9near the other end, and the finger piece 10 at the latter named end,said piece being adapted for conveniently operating the clevis inopposite directions.

The clevis is formed of a piece of heavy wire or round iron bent intothe shape of said piece 10, 100p 9 and eye 7, one side member 11 of saidloop being separated from the opposite side member -l2, whereby saidloop is resilient laterally in its nature, and so may spread apart for apurpose to be hereinafter explained.

The nose 5 has its outer faces 13 sloping Specification ofLettersPatc-nt.

. Application filed au ust 28, 191a Serial o. 320,487.

and converging from its outer terminal or point 14 toward the adjacentportion of the body of the hook, thus widening the nose at its baseforming the shoulders 15 thereat. said shoulders joining the adjacentneck or portion 16 of the body 1.

The operation is as follows Patented"(1 013 26, I

The clevis is thrown back whereby the throat 4 is uncovered, and a line,link, another hookor other object is introduced into the loop portion ofthe hook through said throat, and seated in position thereon, as shownin dotted lines, Fig. 1. The clevis is then thrown toward the nosewhereby it bridges said throat and closes the same and the sides of theloop portionride down the sloping faces of said nose, whereby they arespread apart or separated until they clear the shoulders 15, when theyclose to.-

ward each other and spring or snap under the same and so engagetherewith, thus interlocking the clevis with the nose and effec-. tivelyclosing the throatv 4 and preventing opening of the hook whereby theobject coupled is prevented from disengaging itself from the hookthrough said throat. i

The finger piece 10 now rests somewhat out of center on the outer wallof the body, at the swell thereof, and prevents inward motion of theclevis, causing'the loop 9 to retain its seat stationarily on theshoulders 15. When superior force is exerted on the finger piece, themembers of the loop are I separated and so clear the shoulders 15, whenthey ride over the latter and consequently over the nose of the hookwhereby the clevis is disconnected fromsaid nose and the throat of thehook is open.

Owing to the projection of the lug 3 from the body of the hook I avoidperforating and correspondingly weakening of thebody for the journalingof the clevis therein, and

so 1preserve the strength of the body.

aving thus described my invention what i I claim as new and desiretosecure by Letters Patent, is j 1. In a hook, a clevis forclosing thethroat,

thereof mounted at one end of the hook and closable over the nosethereof, the said nose having lateral sloping'faces over which theclevis is adapted to be snapped and beneath the lateral extensions ofwhich said clevis is firmly held.

2. Ina hook, a clevis for closing the throat thereof adapted to bemounted at laterally sloped faces and With which said. one end on thehook and having in its clevis may interlock and a finger piece at onelength a resilient loop-like member, Said end extended at an anglethereto, said hook v hook having a nose Whose outer face ishavingthereon a perforated lug cwhichis 15 5 sloping laterally and atWhose base is a adapted to project from the body of the shoulder, saidmember being adapted to ride hook and form the bearing for the jouroversaid face and close on said shoulder naled end of said clevis. and to befirmly held thereunder. GEORGE C. ROHRBACH.

' 3; In a hook, a clevis for closing the throat Witnesses:

10 thereof adapted to be journaled at one end FRANK T. STERlTER,

on the hook, the latter having a nose With J. EDWD. DURHAM, Jr.

